Question

.Their charges and po diagram. State the direction of (1) flow or and (11) flow of current, when both the conductors are joined by a metal wire. 8 16. State whether the resistance of filament of a bulb with decrease, remain unchanged or increase when it glowe Ans. Increase 17. Name the physical quantities of which the units are Q = 5 coulomb O = - 10 coulomb (i) volt, (ii) coulomb, (iii) ohm, (iv) ampere. V = 10 volt V = 5 volt Ans. (i) Potential difference (11) charge Fig. 9.26 (iii) resistance, (iv) current Ans. (1) A to B, (ii) B to A Multiple choice type : w is the direction of flow of current between two 1. Current in a circuit flows : ged conductors determined by their potentials ? (a) in direction from high potential to low potential Ans. Current flows from high potential (b) in direction from low potential to high potential to low potential. (c) in direction of flow of electrons the concept of electric potential difference in (d) in any direction. work done in transferring the charge. Ans. (a) in direction from high potential - term potential difference. efine the S.I. unit of potential difference. 2. The unit of potential difference is : (a) ampere al difference between two conductors is​

Answer 1

Answer:

(a) in direction from high potential - term potential difference. efine the S.I. unit of potential difference.

=>S.I. unit of potential difference is volt (joule per coulomb). Potential difference between two points is said to be 1 volt if work done in transferring 1 coulomb of charge from one point to the other point is 1 joule.

Answer 2

Answer:

Their charges and po diagram. State the direction of (1) flow or and (11) flow of current, when both the conductors are joined by a metal wire. 8 16. State whether the resistance of filament of a bulb with decrease, remain unchanged or increase when it glowe Ans. Increase 17. Name the physical quantities of which the units are Q = 5 coulomb O = - 10 coulomb (i) volt, (ii) coulomb, (iii) ohm, (iv) ampere. V = 10 volt V = 5 volt Ans. (i) Potential difference (11) charge Fig. 9.26 (iii) resistance, (iv) current Ans. (1) A to B, (ii) B to A Multiple choice type : w is the direction of flow of current between two 1. Current in a circuit flows : ged conductors determined by their potentials ? (a) in direction from high potential to low potential Ans. Current flows from high potential (b) in direction from low potential to high potential to low potential. (c) in direction of flow of electrons the concept of electric potential difference in (d) in any direction. work done in transferring the charge. Ans. (a) in direction from high potential - term potential difference. efine the S.I. unit of potential difference. 2. The unit of potential difference is : (a) ampere al difference between two conductors is (b) volt (c) ohm in the meaning of this statement. (d) coulomb. Ans. (b) volt 3. On increasing the resistance in a circuit, the current in a to low potential.

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